Mine was REALLY tight and I also struggled to get it loose. I didn't give up and it finally loosened. It has been fine ever since, and I simply screw it on till it stops without trying to tighten it alot.

Sorry about this. We found this problem out three days into shipping. One of our assembly staff did not realize his own strength and was tightening the front and back optical groups with way too much vigor. We went back to all the stock we had not shipped and loosened them up but some got shipped this way.

What has seemed to work for those that have called with this problem is, with the Fisheye Optic not mounted in your Composer, put a rubber band around each end and use that to get your traction to unscrew the front optical group from the back.

After this first loosening, tighten gingerly and you should not have any more problems with this in the future.

Sorry for the hassle.

-Craig

You could not step twice into the same rivers; for other waters are ever flowing on to you.
Heraclitus of Ephesus